Authorities are investigating whether an incident this morning involving Virginia State Sen. Creigh Deeds and his son Gus Deeds, who died from a gunshot wound, was an attempted murder-suicide.

Corinne Gellar, spokeswoman for the Virginia State Police, said Tuesday afternoon that the investigation is still ongoing. She said that Deeds and his son were the only two people at home at the time of the incident, and that a weapon has been recovered. She did not specify the type of firearm.

Gellar could not confirm reports that Gus Deeds had been released after undergoing a mental health evaluation on Monday.

Sen. Deeds' condition was upgraded from critical to fair condition, the University of Virginia Medical Center announced Tuesday.